ibniz: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/ibniz - from package: ibniz

You may install the required package with command apt-get install {package}

Error in other languages:
ibniz: bevel nie gevind nie
ibniz: comandă negăsită
ibniz: comando não encontrado
ibniz: commande introuvable
ibniz: command not found
ibniz: käsku ei ole
ibniz: không tìm thấy lệnh
ibniz: komanda nerasta
ibniz: Kommando nicht gefunden.
ibniz: kommandot finns inte
ibniz: komut yok
ibniz: nie znaleziono polecenia
ibniz: níor aimsíodh an t-ordú
ibniz: no se encontró la orden
ibniz: no s'ha trobat l'ordre
ibniz: opdracht niet gevonden
ibniz: parancs nem található
ibniz: perintah tidak ditemukan
ibniz: príkaz nenájdený
ibniz: příkaz nenalezen
ibniz: команда не найдена
ibniz: командата не е открита
ibniz: 命令找不到
ibniz: コマンドが見つかりません